public class AppTest 
{
  public static void main(String[] args) throws Exception 
  {
    // 后裔
    HeroHouYi heroHouYi = new HeroHouYi();
    heroHouYi.doArchery();

    // 廉颇
    HeroLianPo heroLianPo = new HeroLianPo();
    heroLianPo.doInvisible();
  }
}
